Relation between the dynamics of the reduced purity and correlations

Gen Kimura, Hiromichi Ohno, Milán Mosonyi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

General property of the relation between the dynamics of reduced purity and correlations in quantum mechanical systems is investigated. We show that a non-zero time-derivative of the reduced purity of a system implies the existence of non-zero correlations with its environment for any unbounded Hamiltonian with finite variance. This shows the impact of local dynamical information on the correlations, as well as the role of correlations in the mechanism of purity change.

Original languageEnglish
Pages (from-to)233-243
Number of pages11
JournalOpen Systems and Information Dynamics
Volume17
Issue number3
DOIs
Publication statusPublished - 2010 Sep
Externally publishedYes

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Hamiltonians
purity
Derivatives

ASJC Scopus subject areas

  • Statistics and Probability
  • Mathematical Physics
  • Information Systems
  • Statistical and Nonlinear Physics
  • Fluid Flow and Transfer Processes
  • Computational Mechanics
  • Mechanics of Materials
  • Physical and Theoretical Chemistry

Cite this

Relation between the dynamics of the reduced purity and correlations. / Kimura, Gen; Ohno, Hiromichi; Mosonyi, Milán.

In: Open Systems and Information Dynamics, Vol. 17, No. 3, 09.2010, p. 233-243.

Research output: Contribution to journalArticle

Kimura, Gen ; Ohno, Hiromichi ; Mosonyi, Milán. / Relation between the dynamics of the reduced purity and correlations. In: Open Systems and Information Dynamics. 2010 ; Vol. 17, No. 3. pp. 233-243.
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